ContainerRequestFilter ContainerResponseFilter doesn't get called

httpresponse, jax-rs, jersey, rest, servlets

Solution

I added a Jersey Application class and registered the filter in the class, which solved my problem. Also upgraded my jersey version to 2.x from 1.x

public class MyApplication extends ResourceConfig {

    /**
     * Register JAX-RS application components.
     */
    public MyApplication () {
        register(RequestContextFilter.class);
        register(JacksonFeature.class);
        register(CustomerResource.class);
        register(Initializer.class);
        register(JerseyResource.class);
        register(SpringSingletonResource.class);
        register(SpringRequestResource.class);
        register(CustomExceptionMapper.class);
    }
}

Problem

I am trying to learn jersey by creating a small RESTful service. I want to use the Filters for specific reasons(Like I want to use the ContainerResponseFilter for CORS headers to allow cross domain requests). However, I am just not able to get these filters intercept my call. I have seen all the posts for this problem and most of them say to register with annotation provider or in web.xml. I have tried registering the files in web.xml as well as giving a `@Provider` annotation for the container Here is my web.xml ``` <?xml version="1.0" encoding="UTF-8"?> <!-- This web.xml file is not required when using Servlet 3.0 container, see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html#d4e194 --> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/classes/spring/config/BeanLocations.xml</param-value> </context-param> <servlet> <servlet-name>Jersey Web Application</servlet-name> <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> <init-param> <param-name>com.sun.jersey.config.property.packages</param-name> <param-value>com.rest.example</param-value> </init-param> <init-param> <param-name>jersey.config.server.provider.packages</param-name> <param-value>com.rest.example.cors</param-value> </init-param> <init-param> <param-name>com.sun.jersey.spi.container.ContainerResponseFilters</param-name> <param-value>com.rest.example.CORSFilter</param-value> </init-param> <init-param> <param-name>com.sun.jersey.spi.container.ContainerRequestFilters</param-name> <param-value>com.rest.example.RequestFilter</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>Jersey Web Application</servlet-name> <url-pattern>/webresources/*</url-pattern> </servlet-mapping> </web-app> ``` Here are my Filters: ``` package com.rest.example.cors; import javax.ws.rs.ext.Provider; import com.sun.jersey.spi.container.ContainerRequest; import com.sun.jersey.spi.container.ContainerResponse; import com.sun.jersey.spi.container.ContainerResponseFilter; @Provider public class CORSFilter implements ContainerResponseFilter { public ContainerResponse filter(ContainerRequest creq, ContainerResponse cresp) { cresp.getHttpHeaders().putSingle("Access-Control-Allow-Origin", "*"); cresp.getHttpHeaders().putSingle("Access-Control-Allow-Credentials", "true"); cresp.getHttpHeaders().putSingle("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS, HEAD"); cresp.getHttpHeaders().putSingle("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With"); return cresp; } } package com.rest.example.cors; import javax.ws.rs.ext.Provider; import com.sun.jersey.spi.container.ContainerRequest; import com.sun.jersey.spi.container.ContainerRequestFilter; @Provider public class RequestFilter implements ContainerRequestFilter { public ContainerRequest filter(ContainerRequest request) { System.out.println("request filter"); return request; } } ``` Link to my github project.

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